【作者】 吴文忠； 郭之虞； 于金祥； 宋执中； 张征芳； 吕建钦； 于茂林； 王忠义； 邹宇斌；

【Author】 WU Wen-zhong;GUO Zhi-yu;YU Jin-xiang;SONG Zhi-zhong;ZHANG Zheng-fang;LU Jian-qin;YU Mao-lin;WANG Zhong-yi;ZOU Yu-bing Institute of Heavy Ion Physics, Peking University and Key Laboratory of Heavy Ion Physics, Ministry of Education, Beijing 100871, China

【机构】 北京大学重离子物理研究所,重离子物理教育部重点实验室；

【摘要】 介绍了一台基于多缝单丝法的强流离子束发射度仪,讨论了缝丝法的测量原理及该发射度仪的系统构成和设计要点,给出了利用该发射度仪对中国原子能科学研究院ECR离子源发射度的测量结果。对于强流离子束,只能采用短缝对束流进行不完全采样以实现充分的冷却。由此引起的系统误差,可以通过模拟计算估计其修正值。更多还原

【Abstract】 A high-current ion beam emittance measurement unit (EMU) is introduced inthe paper. The measurement principle of slit-wire method is discussed. The system con-struction and design key-points of the EMU are discussed, too. The measurement re-sults of emittance of ECR proton source at China Institute of Atomic Energy using theEMU were given. For high-current ion beam, short slits have to be used to sample partof beam so that effective cooling could be performed, which would introduce some sys-tematic errors and its correction could be estimated by simulation.更多还原